Battery-powered vehicle warning sign having alternating red and yellow flashing triangularly shaped ribbon lights



FIG. 1 is a perspective view of a battery-powered vehicle warning sign having alternating red and yellow flashing triangularly shaped ribbon lights showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a reduced perspective view showing the battery-powered vehicle warning sign having alternating red and yellow flashing triangularly shaped ribbon lights in use along a roadway in solid lines and on a vehicle in dashed lines; the broken lines depict environmental structure for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a battery-powered vehicle warning sign having alternating red and yellow flashing triangularly shaped ribbon lights, as shown and described. 